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公开(公告)号：US3392163A
公开(公告)日：1968-07-09
申请号：US45286665
申请日：1965-05-03
Applicant: ROBESON PROCESS COMPANY
Inventor： BARNWELL ROBERT E , MARSHALL NORMAN F
IPC: C04B33/13
CPC classification number: C04B33/1305 , C04B33/13 , C08H6/00
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